James Harris Jackson, 28, intended to “kill as many black men here in New York as he could” on Friday, the day he attacked Timothy Caughman, 66, with a 26-inch sword, prosecutor Joan Illuzi said, according to NBC New York. “The defendant was motivated purely by hatred,” Illuzi added.

Jackson revealed to police that he’s harbored a hatred for black men for at least 10 years, authorities said during a Wednesday press conference. The New York Times reported that Jackson wrote a manifesto detailing his plans, which he had intended to deliver to the paper.

Hank Newsome, president of Black Lives Matter’s New York branch, told NBC News that the attack was “an act of domestic terrorism,” adding that “there is no way Mr. Caughman should have had to die like this.”

On Jan. 15, 1947, the remains of Elizabeth Short were found in a vacant lot in Los Angeles. What made this discovery the stuff of tabloid sensation, however, was the Glasgow smile left on the aspiring actress' face ― made with 3-inch slashes on each side. This, coupled with Short's dark hair, fair complexion and reputation for sporting a dahlia in her hair, led her to be dubbed "The Black Dahlia" in headlines. What followed was a media circus filled with rumors and speculation about the 22-year-old's checkered past. What haunts theorists to this day, apart from the victim's uniquely nightmarish visage, is that the case remains unsolved after some 200 suspects were interviewed and ultimately released, making it one of Hollywood's most lurid legends.